Lock for demountable rims



` April 21,- 1931. J. N. BURKLE LOCK FOR DEMOUNTABLE RIMS Filed March '5, 1928 Patented Apr. 21, 1931 PATENT Forricr.

JOSEP-H N. BURKLE, OF `EJ-USrILlE RIVER, WISCONSIN LOCK non DEMOUNTABLE RIMS .applicativa ined Marga 3, 192,8. serial No. 258,7'30.l

This invention relates to locks for deniountsuitable aperture in the telly 13 of the wheel.

able rims, and more particularly torineans for locking Vdemountable `rims on automobile wheels.

-The principal object of the invention is to provide a simplified, easily manipulated means for ylocking a. demountable rim on a wheel. Another object of the invention is to provide a means which will be applicable to a standard vform of demountable rim and wheel without necessitating substantial Vchanges in the construction of the `Wheel or rim. It is also an object of the present 'invention to pro vide a rim lock which willbe simultaneously eil'ective tor force the wheel inwardly over the riml into engagement with a stop flange or the like on the Ainner 'face of the wheel, and to prevent relative rotation between the wheel and rim when the same are locked together.

29 In general, the objectoll lthis invention is to provide an improved lock for demountable rims', which is simple in operation, easy to manipulate, and which locking means may be engaged or disengaged in a minimum of time.

2"- Otherl objects of the invention will be understood 'by reference 'to the following specilicvati'on and accompanying drawing in ywhich I have illustrated an z'uitpnmbile wheeland d'e- Y mountable rim vsecured*'together locking means embodying a selectedform ofv in# venti'on.

In the drawings; n t

Fig. 1 isa side elevation of an automobile wheel including a'demountable rim and tire.y Fig. e is @enlarged View Vin elevational a. portion of Fig.l 1, the tire beingomiftted 'and a portionbeing broken away to more clearly show.certain'features of my invention. Y

Fig. V3 is a section on the line 3p-Bof Figl 2, and Fig. 4 is a section on the line of Fig. 3. VReferring now' to the drawings, I have indicated ademountablerim 10, carrying a tire 11 mounted on an automobile wheel`12. The

type often referred to as an artillery wheel and includes' a f elly 13, The tire y11is se# cured to the riin' 10'in any conventional manner and isserve'd jby a valve 14 which entends operating faces 19 and 20 serves in the inanwheel 12Y in the present embodiment is of the' from the tire,`throligh therim and through a My invention is not limited to use on artillery type wheels, and hence, it should be understood that by the term telly, I contemplate the peripheral part of any type of wheel which is adapted to receive so called demountable rims.

A stop flange 15 l is secured to the inner face of the felly 13 of the rim, projecting outwardly and extending around the wheel in ac cordance with usual practice. The rim 10 lits loosely over the'felly 13 and when locked on the wheel abuts against the stop flange 15, which serves to prevent inward displacement or removal of the rim from the wheel.`

For locking the rim on the wheel and against the stop flange 15, I provide a plurality of spaced lugs 'lsecured in any suitable manner tothe outside face of'tlierim 1() and a plurality of lugs 17 'secured in Yany suitable 70 manner to the outside faceof the Wheel telly 13. The lugsv 16 have oppositely facing inclined and beveled edge .portions 18 and 1'9, f and the lugs 17 are also provided with oppositely facing inclined and beveled edge 'portions 20 and 21 .which are similar to the inclined and beveled facesIS and 1 9 of the lufrs 16.

Iy an inspection of'Fig. Qfit will be understood that when the rim is to be mounted on the rwheel-,the rim is slipped ,over the wheel inthe usual manneigthe vlugs `1610i` the rim beingpositioned closelyk adjacent but spaced sidewise from the lugslfcarried by thewheel telly. The rim is then rotated relative to the wheel so that the inclined andbevelled faces 19 and i2() of the lugs 16 and 17 vresl'iect'ively are .brought into cooperative engagement. It will" bejapparent that the bevel of the co'- ner of cam mechanism,'t'o force the rim inwardly over the wheel telly, i. e., towards Y the stop flange 15, when the rim is rotated relative to the wheel. will also be noted that the inclination of said cooperating faces 9 urges o'r tends to lcause the adjacent rim por! tions to y'move radiallyv outwardly from the wheel Velly, whereby the rim is effectively Ycentered on the wheel, that is to say, the rim warb@ substantially'equally spaced radially 1W from the whcel'felly around the entire pe riphery of the latter. By providing the lugs 16 and 17 with duplex inclined tacos as above describechl avoid the necessity olf providing right and left hand lugs and also permit any rinf to be mounted on any wheel of thevehicle which is equipped Ywith my form ol rim lock. For permitting relative rotation between the wheel and rim as above'deseribed, I provide an elongated aperture 22 in the felly of the wheel `for receiving the valve 14. It will be apparent thatlwhen the rim is placed on the Qwheel, the valve stem 14 will be passed through the aperture 22 adjacent the end remote from the'normalposition of the valve able means is, of course, provided `for holding the rim in such locked position.

I prefer however; to provide a locking means Whiclfis incidentally effective to rotate the rim relative to the wheel so asto effect cooperating engagement between the lugs 16 and 17. This locking means according to the present invention, consists of a stop member 23 secured to the felly of the wheel by suitable means such as rivets 24, and a lug 25 secured to the rim 10 and provided with tapered apertures through which bolts 26 are screwed, a lock nut 27 being provided for locking each bolt- 26 in the desired position of adjustment in the lug 25. A loose or independent wedge member 28 is provided and adapted to be inserted between the head ot the bolt 26 and the adjacent edge 29 of the member 23, which edge is disposed at an angle, as clearly shown in Fig. 3. The wedge 28 is also provided with an angularly disposed ed ge 30 which engages the inclined edge 29 so that when the wedge member is forced inwardly between the heads of the bolts 26 and stop member 2U, the rim and wheel are forced to rotate relative to each other.

For effecting inward movement of the wedge member 28. and for retaining the member in the desired position of adjustment, I provide a bolt 31 threadedly engaging a threaded aperture 32 in the wedge member and passing through a washer member 33, which is disposed against the outside face of the Wheel felly 13 and adjacent portion of the rim 19. It will be apparent that when the bolt 31 is screwed into the wedge 28, the wedge Willbe drawn outwardly between the bolt 26 and member 23 so that the wheel and rim will be caused to rotate relative to each other.

Y The angle of the faces 29 and 30 of the lmembers 23 and 28 is preferably such that the relative rotation imparted to the wheel will be sufficient to eil'ect the necessary eooperating engagement between the lugs 16 and 17 when the rim is initially placed on the wheel in a position substantially as shown in Fig. 2, where the lugs 16 and 17 are spaced a distance apart suf'licienl to permit removal from or placement of the rim on the wheel without interference between the lugs 1G and 17. I may of course, substitute a fixed stop or lug on the rim of the wheel for the adjustable stop arrangement 25, 26 and 27, but I have found it desirable in some cases to provide the adjustable arrangement described. In some instances I provide a double wedge, that is, one having oppositely disposed inclined edges. With such a wedge, the angularity of each of the edges may be less than that of the inclined edge of a single wedge such as shown.

I am aware that changes may be made in the form, construction and arrangement of parts without departing from the spirit of the invention, for which reason the scope of the same should be determined by reference to the following claims which should be construed as broadly as possible consistent with the state of the art.

I claim as my invention:

1. In combination, a wheel, a rim removably mounted on the felly of said wheel, and means for locking said rim on said wheel, said locking means comprising a plurality of lugs attached to the outer side wall of said felly at circumferentially spacedlocations, a plurality of lugs attached to the outer side wall of said rim at corresponding circumferentialiy spaced locations and overlapping the outer side Wall of said felly, said Wheel and rim lugs being formed with cooperating longitudinally inclined and transversely beveled edges adapted to engage each other under a turning movement of said rim on said felly to eiect an interlock between said rim and felly preventing both outward and inward sidewise displacement of said rim from said felly, the cooperating bevels of said edges serving to urge said rim inwardly of the felly as the rim is turned, Aand the cooperating inclines of said edges serving to center the rim on the wheel, and means for locking the rim in adjusted position.

2. In combination, a wheel, a rim removably mounted on the felly of said wheel, and means for locking said rim on said wheel, said locking means comprising a plurality of flat lugs attached to the outer side wall-of said felly at circumferentially s aced locations, a plurality of lugs attaced to the outer side wall of said rim at corresponding circumferentially spaced locations and overlapping the outer side Wall of said felly, said wheel and rim lugs being formed with cooperating edges that are correspondingly inclined to radii of the wheel and are translili) U outward and nWard sidewse displacement Y versely beveled, said edges bengadapted to engage each other under a turning movement of said rim on said felly to effect an interlock between said rim and felly preventing both of said rim from said felly, the cooperating bevels of said edges serving to cam said rim inwardly of the felly as the rim is turned, and the cooperating nclnes of said edges d operating to force the rim radially outward- 1y of the felly, and means for locking the rim n adjusted position.

JOSEPH N. BURKLE. 

